C31231211113313121211113313331333133313331213331333131122112323221323221   >>    C3123121111331312121111331333133313331333121333133313112211232322132322   <<    C31231211113313121211113313331333133313331213331333131122112323221323223   >>      C31231211113313121211113313331333133313331213331333131122112323221323222   >>